结果表明该法能消除大部分的数值弥散，而且又不增加解的振荡性。
It is showed that the method can dispel most numerical dispersion and the vibration of solution doesn't increase.
给出了问题径向正解的非存在性，解的振荡性及有界性的充分条件，并对有界解进行了估计。
The nonexistence theorem of radial positive solution, sufficient conditions of oscillation and boundedness of radial solution and estimation for bounded solution are given in this paper.
应用现代差分方程理论对这些数学模型解的渐近性态与周期振荡进行了详细的讨论研究。
The asymptotical behaviors and periodic oscillations have been studied by applying the modern theories of difference equations.
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